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cwlsxxa: Initial implementation

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The driver was developed using the Veris CWLSHTA CO2 Gas sensor.  The
'T' variant supports a temperature sensor, and the 'H' variant
supports a humidity sensor.

All 3 signals are provided by the device as analog 0-5Vdc, 0-10Vdc, or
4-20ma loop current outputs.  For devices supporting temperature, the
valid temperature range is 10C to 50C.  The humidity ranges from 0% to
100% (non-condensing).  The CO2 sensor ranges from 0 to 2000 ppm.

This driver was developed using the 5Vdc outputs and the 4-20ma
outputs.  For voltage outputs, your MCU must be configured for 5V
operation.  In addition, you must configure the sensor (via it's
configuration switches) to output 0-5VDC only.  Using any other analog
reference voltage will require the appropriate external circuitry
(such as a voltage divider) in order to interface safely with your
MCU.

In addition, the sensor can be configured for 4-20ma usage, by
specifying the correct receiver resistance (in ohms) in the
constructor.  This sensor was tested with a Cooking Hacks (Libelium)
4-channel 4-20ma Arduino interface shield.  For this interface, the
receiver resistance was specified as 165.0 ohms.

Signed-off-by: Jon Trulson <jtrulson@ics.com>
Signed-off-by: Abhishek Malik <abhishek.malik@intel.com>
This commit is contained in:
Jon Trulson
2016-02-19 17:58:44 -07:00
committed by Abhishek Malik
parent f3a2e0d77c
commit a8d96bd2d9
12 changed files with 692 additions and 0 deletions
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1
examples/c++/CMakeLists.txt
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@ -248,6 +248,7 @@ add_example (max44009)
add_example (si1132)
add_example (si7005)
add_example (t6713)
add_example (cwlsxxa)
# These are special cases where you specify example binary, source file and module(s)
include_directories (${PROJECT_SOURCE_DIR}/src)

82
examples/c++/cwlsxxa.cxx Normal file
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@ -0,0 +1,82 @@
/*
* Author: Jon Trulson <jtrulson@ics.com>
* Copyright (c) 2016 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <unistd.h>
#include <iostream>
#include <signal.h>
#include "cwlsxxa.h"
using namespace std;
bool shouldRun = true;
void sig_handler(int signo)
{
if (signo == SIGINT)
shouldRun = false;
}
int main(int argc, char **argv)
{
signal(SIGINT, sig_handler);
//! [Interesting]
cout << "Initializing..." << endl;
// Instantiate an CWLSXXA instance, using A0 for CO2, A1 for
// humidity and A2 for temperature
upm::CWLSXXA *sensor = new upm::CWLSXXA(0, 1, 2);
// update and print available values every second
while (shouldRun)
{
// update our values from the sensor
sensor->update();
// we show both C and F for temperature
cout << "Temperature: " << sensor->getTemperature()
<< " C / " << sensor->getTemperature(true) << " F"
<< endl;
cout << "Humidity: " << sensor->getHumidity()
<< " %" << endl;
cout << "CO2: " << sensor->getCO2()
<< " ppm" << endl;
cout << endl;
sleep(1);
}
cout << "Exiting..." << endl;
delete sensor;
//! [Interesting]
return 0;
}

1
examples/java/CMakeLists.txt
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@ -105,6 +105,7 @@ add_example(Ad8232Example ad8232)
add_example(Gp2y0aExample gp2y0a)
add_example(Th02Example th02)
add_example(FlexSensorExample flex)
add_example(CWLSXXA_Example cwlsxxa)
add_example_with_path(Jhd1313m1_lcdSample lcd/upm_i2clcd.jar)

62
examples/java/CWLSXXA_Example.java Normal file
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@ -0,0 +1,62 @@
/*
* Author: Jon Trulson <jtrulson@ics.com>
* Copyright (c) 2016 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
import upm_cwlsxxa.CWLSXXA;
public class CWLSXXA_Example
{
public static void main(String[] args) throws InterruptedException
{
// ! [Interesting]
// Instantiate an CWLSXXA instance, using A0 for CO2, A1 for
// humidity and A2 for temperature
CWLSXXA sensor = new CWLSXXA(0, 1, 2);
while (true)
{
// update our values from the sensor
sensor.update();
// we show both C and F for temperature
System.out.println("Temperature: "
+ sensor.getTemperature()
+ " C / "
+ sensor.getTemperature(true)
+ " F");
System.out.println("Humidity: "
+ sensor.getHumidity()
+ " %");
System.out.println("CO2: "
+ sensor.getCO2()
+ " ppm");
Thread.sleep(1000);
}
// ! [Interesting]
}
}

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examples/javascript/cwlsxxa.js Normal file
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@ -0,0 +1,66 @@
/*jslint node:true, vars:true, bitwise:true, unparam:true */
/*jshint unused:true */
/*
* Author: Jon Trulson <jtrulson@ics.com>
* Copyright (c) 2016 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
var sensorObj = require('jsupm_cwlsxxa');
/************** Main code **************/
console.log("Initializing...");
// Instantiate an CWLSXXA instance, using A0 for CO2, A1 for
// humidity and A2 for temperature
var sensor = new sensorObj.CWLSXXA(0, 1, 2);
// update and print available values every second
setInterval(function()
{
// update our values from the sensor
sensor.update();
// we show both C and F for temperature
console.log("Temperature:", sensor.getTemperature(),
"C /", sensor.getTemperature(true), "F");
console.log("Humidity:", sensor.getHumidity(), "%");
console.log("CO2:", sensor.getCO2(), "ppm");
console.log("");
}, 1000);
process.on('SIGINT', function()
{
sensor = null;
sensorObj.cleanUp();
sensorObj = null;
console.log("Exiting...");
process.exit(0);
});

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examples/python/cwlsxxa.py Normal file
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@ -0,0 +1,61 @@
#!/usr/bin/python
# Author: Jon Trulson <jtrulson@ics.com>
# Copyright (c) 2016 Intel Corporation.
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
import time, sys, signal, atexit
import pyupm_cwlsxxa as sensorObj
## Exit handlers ##
# This function stops python from printing a stacktrace when you hit control-C
def SIGINTHandler(signum, frame):
raise SystemExit
# This function lets you run code on exit
def exitHandler():
print "Exiting"
sys.exit(0)
# Register exit handlers
atexit.register(exitHandler)
signal.signal(signal.SIGINT, SIGINTHandler)
print "Initializing..."
# Instantiate an CWLSXXA instance, using A0 for CO2, A1 for
# humidity and A2 for temperature
sensor = sensorObj.CWLSXXA(0, 1, 2)
# update and print available values every second
while (1):
# update our values from the sensor
sensor.update()
# we show both C and F for temperature
print "Temperature:", sensor.getTemperature(), "C /",
print sensor.getTemperature(True), "F"
print "Humidity:", sensor.getHumidity(), "%"
print "CO2:", sensor.getCO2(), "ppm"
print
time.sleep(1)